Home / 8,438.26-11,641.98-5,457.86

Finding the Fourth Proportional to 8,438.26, 11,641.98 and 5,457.86

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Solution

The fourth proportional to 8,438.26, 11,641.98 and 5,457.86 is: 7,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.26 : 11,641.98 = 5,457.86 : x
  2. Step 2: Convert to fraction form
    8,438.26/11,641.98 = 5,457.86/x
  3. Step 3: Cross multiply
    8,438.26x = 11,641.98 × 5,457.86
  4. Step 4: Simplify right side
    8,438.26x = 63,540,296.96
  5. Step 5: Solve for x
    x = 63,540,296.96/8,438.26
  6. Step 6: Final answer
    x = 7,530.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.